testo 445 - Service instrument for air conditioning / ventilation systems

• Infrared thermometer for non-contact surface temperature measurements
• TopSafe protective case (optional) protects from water and dirt in accordance with IP 65
• Scan mode for long-term measurement
• Pocket size measuring instrument: compact for easy handling

 

• 1,000 V AC/DC voltage measuring range, TRMS, and low pass filter
• Auto-test setup based upon lead connection prevents blown fuses in the meter
• Meter automatically detects testing in-process, and selects the correct meter configuration, saving time and optimizing accuracy
• Measure up to 400 A with optional clamp probe adapter

 

• Measures high-side or low-side refrigerant pressure (or both simultaneously, with 2 probes) in AC and refrigeration systems
• No hoses required; clean, simple, and accurate
• Low-loss refrigerant pressure testing!
• Use with the testo 115i pipe-clamp temperature probes for automatic superheat and subcooling calculations

 

• For quick and easy measurements in the workplace
• Sensor based on the spectral sensitivity of the human eye
• Hold function, min/max values
• Protective cap for safe storage

 

• DVGW-tested
• Switchable measuring ranges with high resolution
• Alarm indicator for undershooting of freely adjustable limit values
• Print out of measurement data with the testo fast printer

 

• 30:1 optics for measuring temperature at a distance, even on small objects
• Fast measurement value recording at two measurements per second
• 2-point laser for spot sighting
• Display illumination

 

• Very good image quality: IR resolution of 160 x 120 pixels, via integrated testo SuperResolution Technology 320 x 240 pixels
• Visualizing temperature differences from 0.12°C
• Automatic detection of hot and cold spots

 

• Temperature measurements / temperature difference display
• Wide measuring range from -58 °to 1832 °F
• Connecting points for two type K temperature sensors and wireless connectivity for a third temperature sensor
• Wide range of optional sensors

 

• 7 pressure units to choose from: psi, kPa, hPa, mmH2O, mmHg, inH2O, inHg
• Large measuring range up to 2000 hPa
• TopSafe protective case (optional) protects against impact, dirt, and spray water
• Backlit display / min and max values / hold function

 

• Multi-function climate measuring instrument: measure up to 6 measurement parameters at the same time
• Internal reading memory for up to 3,000 readings
• Automatic allocation of the duct cross-section to the measuring location (max. 99 measuring locations)
• Automatic mean value calculation and determination of the volume flow